Many operations are now faster, including map scrolling, and all preferences can now be saved. Sounds and music play without interruption and there is native support for multiple mouse-buttons and mouse wheels under OS X.
The option key now brings up the start-up configuration dialog. A number of visual glitches have been ironed out for OS X users.
A 1,600-x-1,024-pixel screen resolution for Cinema Displays and a 1,152-x-768-pixel screen resolution for G4 PowerBooks have been added.